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    <title>RGraph: Javascript charts library - meter charts</title>
    
    <meta name="keywords" content="rgraph html5 canvas example meter charts" />
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    <meta property="og:description" content="A charts library based on the HTML5 canvas tag" />
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    <script src="../libraries/RGraph.meter.js" ></script>
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    <script>
        window.onload = function ()
        {
            var meter1 = new RGraph.Meter('meter1', 50, 100, 58);
            
            var grad1 = meter1.context.createRadialGradient(meter1.canvas.width / 2,meter1.canvas.height - 25,0,meter1.canvas.width / 2,meter1.canvas.height - 25,200);
            grad1.addColorStop(0, 'green');
            grad1.addColorStop(1, 'white');
            
            var grad2 = meter1.context.createRadialGradient(meter1.canvas.width / 2, meter1.canvas.height - 25,0,meter1.canvas.width / 2, meter1.canvas.height - 25,200);
            grad2.addColorStop(0, 'yellow');
            grad2.addColorStop(1, 'white');
            
            var grad3 = meter1.context.createRadialGradient(meter1.canvas.width / 2, meter1.canvas.height - 25,0,meter1.canvas.width / 2, meter1.canvas.height - 25,200);
            grad3.addColorStop(0, 'red');
            grad3.addColorStop(1, 'white');
            
            meter1.Set('chart.labels.position', 'inside');
            meter1.Set('chart.title', 'A sample measurement');
            meter1.Set('chart.title.vpos', 0.5);
            meter1.Set('chart.title.color', 'black');
            meter1.Set('chart.green.color', grad1);
            meter1.Set('chart.yellow.color', grad2);
            meter1.Set('chart.red.color', grad3);
            meter1.Set('chart.border', false);
            meter1.Set('chart.needle.linewidth', 5);
            meter1.Set('chart.needle.tail', true);
            meter1.Set('chart.tickmarks.big.num', 0);
            meter1.Set('chart.tickmarks.small.num', 0);
            meter1.Set('chart.segment.radius.start', 100);
            meter1.Set('chart.needle.radius', 80);
            meter1.Set('chart.needle.linewidth', 2);
            meter1.Set('chart.linewidth.segments', 15);
            meter1.Set('chart.strokestyle', 'white');
            meter1.Set('chart.text.size', 14);
            //meter1.Draw();
            RGraph.Effects.Meter.Grow(meter1, {'frames': 30});

            var meter2 = new RGraph.Meter('meter2', 0, 10, 5);
            meter2.Set('chart.units.post', 'kg');
            meter2.Set('chart.red.start', 0);
            meter2.Set('chart.red.end', 3);
            meter2.Set('chart.yellow.start', 3);
            meter2.Set('chart.yellow.end', 6);
            meter2.Set('chart.green.start', 6);
            meter2.Set('chart.green.end', 10);
            meter2.Draw();
        }
    </script>


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    <h1>RGraph: <span>Javascript charts library</span> - Meter charts</h1>

    <script>
        if (RGraph.isIE8()) {
            document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer 8 does not natively support the HTML5 canvas tag, so if you want to see the charts, you can either:<ul><li>Install <a href="http://code.google.com/chrome/chromeframe/">Google Chrome Frame</a></li><li>Use ExCanvas. This is provided in the RGraph Archive.</li><li>Use another browser entirely. Your choices are Firefox 3.5+, Chrome 2+, Safari 4+ or Opera 10.5+. </li></ul> <b>Note:</b> Internet Explorer 9 fully supports the canvas tag.</div>');
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        <a href="../index.html">RGraph: Javascript charts library</a>
        >
        <a href="./index.html">Examples</a>
        >
        Meter
    </div>
    
    <div>
        <p>
            Meter charts are similar to Odometer charts albeit only a semi-circle and not a full circle. It can be better when trying illustrate
            a particular level, but only have a limited amount of space. It could also be quite effective as part of a control panel.
        </p>
        
        <p></p>
    </div>

    <div>
        <ul>
            <li><a href="../docs/meter.html">Meter charts API documentation</a></li>
        </ul>
    </div>
    
    <div style="text-align: center">
        <canvas id="meter1" width="400" height="250"><div class="canvasfallback">[No canvas support]</div></canvas>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <canvas id="meter2" width="400" height="250"><div class="canvasfallback">[No canvas support]</div></canvas>
    </div>

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